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78032135 = 597251641
BaseRepresentation
bin1001010011010…
…10110100000111
312102211102222002
410221222310013
5124434012020
611424255515
71635155636
oct451526407
9172742862
1078032135
1140057775
122217159b
131322177c
14a51351d
156cb5975
hex4a6ad07

78032135 has 16 divisors (see below), whose sum is σ = 95128992. Its totient is φ = 61440000.

The previous prime is 78032131. The next prime is 78032189. The reversal of 78032135 is 53123087.

It is not a de Polignac number, because 78032135 - 22 = 78032131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78032098 and 78032107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78032131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121415 + ... + 122055.

It is an arithmetic number, because the mean of its divisors is an integer number (5945562).

Almost surely, 278032135 is an apocalyptic number.

78032135 is a deficient number, since it is larger than the sum of its proper divisors (17096857).

78032135 is a wasteful number, since it uses less digits than its factorization.

78032135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 78032135 is about 8833.5799651104. The cubic root of 78032135 is about 427.3245361337.

The spelling of 78032135 in words is "seventy-eight million, thirty-two thousand, one hundred thirty-five".

Divisors: 1 5 97 251 485 641 1255 3205 24347 62177 121735 160891 310885 804455 15606427 78032135